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Xiaomi POCO F2 Pro / Redmi K30 Pro Battery BM4Q 4000mAh

Xiaomi POCO F2 Pro / Redmi K30 Pro Battery BM4Q 4000mAh






Why Choose ESC POCO F2 Pro / Redmi K30 Pro Battery?

Professional Xiaomi Battery Manufacturer

ESC is an experienced Xiaomi battery manufacturer serving mobile phone repair shops, refurbishment facilities, phone-parts wholesalers, repair chains, distributors and private label battery brands.

An experienced research and development team, automated production equipment and standardized inspection procedures support stable specifications and consistent repeat-order quality.

Factory-Direct Wholesale Supply

Purchasing from a factory direct battery wholesaler provides professional buyers with direct access to production, inspection, OEM customization, private packaging and after-sales support.

ESC supports sample evaluation, single-model purchasing, mixed-model orders and long-term bulk battery supply programs.

Shared BM4Q Compatibility

The BM4Q replacement platform is designed for compatible Xiaomi POCO F2 Pro and Redmi K30 Pro devices.

Shared compatibility helps repair businesses and wholesalers simplify SKU management, reduce duplicate inventory and improve stock turnover.

Pure-Cobalt Lithium-Ion Cell

The replacement battery uses a brand-new pure-cobalt lithium-ion cell designed to provide controlled internal resistance, stable voltage output and consistent charging and discharging performance.

Its listed cycle-life target is more than 800 charging cycles under suitable charging, storage and operating conditions.

Strict Quality Control

Quality inspections cover battery appearance, dimensions, voltage, internal resistance, measured capacity, charging behavior, discharging performance, protection functions and aging performance.

ESC states a factory defect-rate target below 0.1% and a customer-reported defect rate below 1%. ESC

Integrated PCM Protection

The PCM board provides protection against overcharging, over-discharging and short circuits.

The protection board, flex cable, connector and contact points are inspected before shipment to reduce electrical abnormalities and installation-related failures.

OEM Battery Factory Support

As an OEM battery factory, ESC supports custom battery labels, customer logos, barcode labels, retail boxes, instruction cards, warranty cards and export-carton markings.

These services help wholesalers, distributors and private label battery suppliers build differentiated Xiaomi and POCO replacement battery ranges.

Flexible Wholesale MOQ

The standard single-model MOQ is 20 pieces. Mixed-model wholesale orders can start from 100 pieces, depending on the selected batteries, packaging and customization requirements.

Samples are available for professional buyers to evaluate before approving a larger order.

Stable Lead Time and Warranty

Standard battery orders can normally be prepared within approximately seven days when stock and materials are available.

A 12-month supplier warranty is available for qualified product-quality issues.

Global Battery Shipping

Available shipping methods include DHL, UPS, air freight, sea freight, railway freight and road transportation.

The appropriate transportation route can be selected according to the destination, quantity, customs requirements, delivery schedule and shipping budget.

Quick Specifications

Specification Details
Product Name Xiaomi POCO F2 Pro / Redmi K30 Pro Replacement Battery
Battery Model BM4Q
Compatible Devices Xiaomi POCO F2 Pro and Redmi K30 Pro
Main Compatible Series M2004J11 and M2001J11 Series
Battery Type Rechargeable Lithium-Ion Battery
Cell Material Brand-New Pure-Cobalt Cell
ESC Listed Capacity 4000mAh
Standard Voltage 3.82V
Product Configuration Replacement Battery With Flex Connection and PCM
Protection Functions Overcharge, Over-Discharge and Short-Circuit Protection
Cycle-Life Target More Than 800 Charging Cycles
Listed Charging Time Approximately 1–3 Hours
Listed Standby Time Approximately 3–7 Days, Depending on Device Use
Working Temperature -10°C to 50°C
Factory Defect-Rate Target Below 0.1%
Customer-Reported Defect Rate Below 1%
Standard Lead Time Within Approximately 7 Days
Warranty 12 Months
Single-Model MOQ 20 Pieces
Mixed-Model MOQ 100 Pieces
OEM Service Custom Logo, Battery Label, Barcode and Private Packaging
Available Certifications and Documents CE, FCC, RoHS, MSDS, UN38.3, PSE, KC, IEC 62133 and TISI
Express Shipping DHL or UPS, Approximately 3–6 Days
Air Freight Available According to Destination and Quantity
Sea Freight Approximately 20–40 Days
Railway Freight Approximately 30–35 Days
Road Transportation Approximately 20–25 Days
Shipping Port Shenzhen
Payment Methods T/T, Western Union, L/C, PayPal, MoneyGram and Credit Card

The ESC product page lists this BM4Q replacement battery at 4000mAh and 3.82V. POCO publishes the F2 Pro device with a 4700mAh typical battery, so professional buyers should verify measured capacity and runtime during sample approval. ESC

POCO F2 Pro battery

What Is a POCO F2 Pro / Redmi K30 Pro Battery?

Product Definition

A POCO F2 Pro battery is a 4000mAh, 3.82V Li-ion replacement battery using the BM4Q reference. ESC is a Xiaomi battery manufacturer, phone battery supplier and OEM battery factory providing strict QC, private labels, bulk supply and global shipping for professional repair markets.

This product is a compatible aftermarket replacement battery. It is not an original Xiaomi or POCO service battery.

Key Features

1. Shared BM4Q Replacement Platform

The BM4Q configuration is designed around the battery compartment, connector position and electrical requirements of compatible POCO F2 Pro and Redmi K30 Pro devices.

Shared compatibility provides a practical inventory option for wholesalers and repair businesses handling both commercial device names.

2. ESC-Listed 4000mAh Capacity

The replacement battery has a listed capacity of 4000mAh and a standard voltage of 3.82V.

Actual runtime depends on measured discharge capacity, device condition, screen brightness, mobile network activity, installed applications, temperature and charging habits.

3. Complete Replacement Configuration

The product includes a model-matched flex connection and PCM protection board rather than being supplied as an unprotected bare cell.

This complete configuration helps professional technicians reduce additional assembly work during battery replacement.

4. More Than 800 Charging Cycles

The pure-cobalt cell has a listed cycle-life target of more than 800 charging cycles under suitable charging, storage and operating conditions.

Actual cycle life depends on charging voltage, discharge depth, operating temperature, charger quality and daily use.

5. OEM and Private Label Support

Custom logos, battery labels, barcode labels, retail boxes, instruction cards, warranty cards and export cartons are available for wholesale and private label orders.

Compatible Xiaomi and POCO Models

Compatible Device Device Model or Series Battery Reference Compatibility Notes
Xiaomi POCO F2 Pro M2004J11G BM4Q Confirm Original Battery Code and Connector
POCO F2 Pro Regional Versions M2004J11 Series BM4Q Verify Battery Dimensions and Flex Orientation
Xiaomi Redmi K30 Pro M2001J11 Series BM4Q Confirm Original Battery Label Before Ordering
Redmi K30 Pro Regional Versions M2001J11 Variants BM4Q Sample Installation Recommended
Redmi K30 Pro Zoom Edition Selected Versions BM4Q Subject to Verification Confirm Original Battery Code and Internal Layout

Xiaomi identifies the global POCO F2 Pro as model M2004J11G. The device is published with a 4700mAh typical battery and 30W fast charging. Xiaomi

Compatibility should be confirmed by checking the exact device model, original BM4Q reference, battery dimensions, flex orientation and connector position.

The BM4Q battery should not be confused with batteries for the POCO F1, POCO F3, Redmi K30, Redmi K30 5G or other POCO and Redmi models.

Applications

Application Description
Mobile Phone Repair Shops Suitable for technicians replacing aged, damaged, swollen, fast-draining or low-capacity POCO F2 Pro and Redmi K30 Pro batteries.
Smartphone Refurbishment Facilities Supports batch refurbishment programs requiring model-specific batteries, controlled specifications and repeat wholesale supply.
Xiaomi and POCO Parts Wholesalers Suitable for wholesalers supplying batteries to repair shops, technicians, service centers and regional distributors.
Repair Chain Stores Centralized purchasing helps repair chains maintain standardized battery references and predictable inventory across multiple locations.
Private Label Battery Brands OEM customization supports customer logos, branded labels, retail packaging, barcodes, instructions and warranty materials.
E-Commerce Battery Sellers Suitable for sellers requiring accurate compatibility information, retail-ready packaging and stable replacement battery inventory.
International Distributors Mixed-model purchasing, export documentation and multiple shipping methods support regional distribution programs.

ESC Replacement Battery vs Original Xiaomi Battery

Comparison Item ESC Replacement Battery Original Xiaomi/POCO Battery
Product Type Compatible Aftermarket Replacement Battery Factory-Installed or Official Service Battery
Compatible Devices POCO F2 Pro and Redmi K30 Pro Original Model-Specific Device
Battery Reference BM4Q Replacement Platform Original Battery Code Should Be Confirmed
Capacity ESC Listed 4000mAh POCO F2 Pro Published at 4700mAh Typical
Standard Voltage ESC Listed 3.82V Original Model-Specific Electrical Specification
Battery Chemistry Pure-Cobalt Lithium-Ion Cell Manufacturer-Selected Rechargeable Battery
Product Condition Brand-New Replacement Battery Brand-New When Originally Installed
Flex Connection Model-Matched Replacement Flex Original Factory Flex
Protection System PCM Protection Board Original Factory Protection System
Protection Functions Overcharge, Over-Discharge and Short-Circuit Protection Integrated Original Protection Functions
Cycle-Life Positioning Listed Target of More Than 800 Cycles Depends on Battery Age and Usage Conditions
Charging System Uses the Device Charging Circuit POCO F2 Pro Supports 30W Fast Charging
Installation Method Professional Repair Installation Required Installed During Manufacturing or Authorized Service
Compatibility Verification Confirmed by Model, Battery Code, Dimensions and Connector Integrated With the Original Device
Branding ESC, Neutral Label or Customized Private Label Original Xiaomi or POCO Identification
Packaging Standard Wholesale or Customized OEM Packaging Original Service-Channel Packaging
Wholesale Availability Available for Professional B2B Purchasing Subject to Official Service-Channel Availability
OEM Labeling Supported Not Available for Third-Party Branding
Private Packaging Supported Not Available
Order Flexibility Single-Model, Mixed-Model and Customized Orders Limited by Official Service-Channel Policies
Single-Model MOQ 20 Pieces Generally Unavailable Through Flexible Wholesale
Warranty 12-Month Supplier Warranty Subject to Original Manufacturer Service Terms
Target Buyers Repair Shops, Refurbishers, Wholesalers and Distributors Original Manufacturing and Authorized Service Networks
Cost Positioning Competitive Professional Replacement Solution Generally Positioned Within the Official Service Ecosystem

The original POCO F2 Pro specification lists a 4700mAh typical battery, while the ESC BM4Q product page lists 4000mAh. Buyers should request measured discharge records and complete sample testing before bulk approval. ESC

Quality Control Process

Incoming Material Inspection

Battery cells, PCM boards, flex cables and connectors are checked for appearance, dimensions, voltage and production consistency before assembly.

Cell Grading

Cells are grouped according to measured capacity, voltage, internal resistance, thickness, appearance and self-discharge performance.

Consistent cell grading helps reduce variation between batteries from the same production batch.

Capacity Verification

Professional battery analyzers are used to verify measured discharge capacity against the approved BM4Q product specification.

Capacity data should be reviewed during sample approval, especially because the ESC replacement capacity differs from the original device’s published typical capacity.

PCM Protection Testing

The PCM board is tested for overcharge, over-discharge and short-circuit protection according to the approved production procedure.

Flex and Connector Inspection

The flex cable, welding points, connector position and contact surfaces are checked for alignment, appearance and electrical continuity.

Charging and Discharging Test

Charging and discharging performance is checked to identify abnormal current, unstable voltage, excessive temperature or early capacity loss.

Aging Inspection

Aging tests help identify abnormal self-discharge and unstable electrical performance before shipment.

Final Inspection

Battery appearance, dimensions, BM4Q reference, flex position, printed information, quantities and packaging are checked before order release.

OEM and Private Label Service

Custom Battery Labels

Customer logos, BM4Q references, capacities, voltages, warning information, batch numbers and traceability codes can be printed on the battery label.

Private Label Packaging

Available options include individual retail boxes, protective trays, barcode labels, instruction cards and warranty cards.

Barcode and SKU Management

Customized product codes, barcode labels and SKU information help wholesalers manage multiple Xiaomi and POCO replacement battery products.

Flexible Branding Options

Buyers can select ESC branding, neutral labels or customized private label designs according to their sales channel and target market.

Mixed-Model Purchasing

Different Xiaomi, Redmi, POCO, Samsung, iPhone, Huawei, OPPO, Vivo, tablet and laptop battery models can be combined according to confirmed quantities.

Export Carton Customization

Outer-carton labels, shipping marks, quantities, battery references and customer branding can be customized for international shipments.

Ordering Information

Quotation Requirements

Provide the required battery model, order quantity, destination country, packaging requirements, logo files, certification requirements and preferred shipping method.

Sample Evaluation

Professional buyers can request samples to evaluate battery dimensions, connector orientation, flex position, measured capacity, voltage stability, device recognition and charging performance.

Compatibility Confirmation

Confirm the exact device model, original BM4Q battery reference, original capacity, battery dimensions and connector position before placing an order.

A photograph of the original battery label is recommended when the regional device version is uncertain.

Bulk Production

Bulk production begins after the battery specification, quantity, label artwork, packaging, payment terms and delivery requirements are confirmed.

Shipping Arrangement

The recommended transportation route is selected according to battery quantity, destination, customs requirements, delivery schedule and shipping budget.

FAQ

1. What is the capacity of the BM4Q replacement battery?

The ESC BM4Q replacement battery is listed at 4000mAh with a standard voltage of 3.82V.

The original POCO F2 Pro device is published with a 4700mAh typical battery, so measured sample capacity should be verified before bulk purchasing.

2. What battery model is used for the POCO F2 Pro and Redmi K30 Pro?

The applicable replacement battery reference is BM4Q.

Buyers should compare the battery code, dimensions, flex position and connector orientation with the original battery before ordering.

3. Can the same BM4Q battery be used for the POCO F2 Pro and Redmi K30 Pro?

The BM4Q replacement platform is listed for compatible versions of both devices.

The exact regional model, original battery code and connector position should still be checked before installation.

4. What device model is associated with the POCO F2 Pro?

The global POCO F2 Pro is identified as model M2004J11G.

Regional versions should be verified using the device settings, rear label or original battery information.

5. Is BM4Q compatible with the standard Redmi K30?

Compatibility should not be assumed.

The Redmi K30, Redmi K30 5G and Redmi K30 Pro are different device platforms and may use different battery shapes, flex cables and connectors.

6. Does the BM4Q battery include a protection board?

Yes. The replacement battery includes a PCM board designed to provide overcharge, over-discharge and short-circuit protection.

The protection functions are checked during the production quality-control process.

7. Is this an original Xiaomi or POCO battery?

No. It is a compatible aftermarket replacement battery manufactured for professional repair, refurbishment and wholesale markets.

It should not be described as an original Xiaomi or POCO service battery.

8. What is the minimum order quantity?

The standard single-model MOQ is 20 pieces. Mixed-model wholesale orders can start from 100 pieces.

Final quantities depend on the selected battery models, packaging and customization requirements.

9. Can ESC customize the battery label and packaging?

Yes. ESC supports customer logos, private battery labels, retail boxes, barcode labels, instruction cards, warranty cards and export-carton markings.

Customized artwork and packaging details can be approved before bulk production.

10. What warranty and shipping methods are available?

A 12-month supplier warranty is available for qualified product-quality issues.

Shipping methods include DHL, UPS, air freight, sea freight, railway freight and road transportation. Delivery time depends on the destination, customs clearance, order quantity and selected logistics route.

私たちの工場

2016 年以来、ESC は B2B バイヤーに交換用バッテリーと充電製品を提供してきました。当社は、柔軟な MOQ、7 日以内のリードタイム、顧客報告による欠陥率 1% 未満で、iPhone、Android スマートフォン、タブレット、ラップトップ向けの 3,000 以上のモデルを提供しています。 2022 年以来、当社は幅広いプロトコル互換性と温度制御を備えたプライベートモールド高速充電パワーバンクを開発してきました。 ESC は、OEM/ODM、認証および生産サービスにより、ブランド、卸売業者、再生業者、修理チェーンをサポートします。

ESC の製造プロセス 1
ESC の製造プロセス 2
ESC の製造プロセス 3
ESC の製造プロセス 4
ESC の製造プロセス 5
ESC の製造プロセス 6

私たちの証明書

ESC証明書1
ESC証明書2
ESC証明書3
ESC証明書4

OEM および ODM バッテリーの注文プロセス

  1. 01

    お客様からのお問い合わせ・ご要望の確認

    バッテリーのモデル、容量、数量、対象市場、認証およびカスタマイズの要件を確認します。

  2. 02

    引用

    製品仕様、注文数量、梱包、配送要件に基づいて詳細な見積もりを提供します。

  3. 03

    カスタマイズ内容の確認

    カスタマイズされたラベル、バーコード、シルク スクリーン アートワーク、ロゴ印刷、パッケージ、その他のブランド詳細を確認します。

  4. 04

    注文確認

    製品の仕様、数量、単価、支払条件、納期、配送方法を決定します。

  5. 05

    デポジットの支払い

    顧客は、材料と生産を手配するために、合意された手付金を支払います。

  6. 06

    生産手配

    材料の準備、バッテリーの組み立て、品質検査、老化テスト、梱包、注文の完了を手配します。

  7. 07

    残高支払い

    製作完了後、ご注文内容を確認後、残金をお支払いいただきます。

  8. 08

    出荷

    目的地と注文の要件に応じて、承認された航空、海、鉄道、または特急ルートによる発送を手配します。

  9. 09

    配送と受け取りのフォローアップ

    出荷書類と追跡情報を提供し、顧客が商品を受け取るまでフォローアップします。

  10. 10

    24時間365日のアフターサポート

    納品後には、迅速な技術サポート、品質問題の分析、アフターセールス ソリューションを提供します。

信頼できる交換用バッテリーのサプライヤーを選択する方法

スマートフォン、タブレット、ノートパソコンの交換用バッテリーを購入する前に、セルの品質、テスト能力、組み立ての詳細、生産の一貫性、設置サポートを評価してください。

バッテリーモデルの対象範囲と互換性を確認する

スマートフォン、タブレット、ノートパソコンのバッテリーを幅広くカバーするサプライヤーを選択してください。注文する前に、元のバッテリー コード、デバイス モデル、コネクタの位置、寸法、定格電圧、システムの互換性を確認してください。

確立されたモデル データベースを持つサプライヤーは、誤った出荷、取り付けの問題、互換性関連の返品を減らすことができます。

1

セルと電子部品の品質をチェックする

バッテリーの品質は原材料から始まります。以下についてサプライヤーに問い合わせてください。

  • バッテリーセルのメーカーとグレード
  • 実際のセル容量
  • セルのサイクル寿命
  • PCBと保護チップソリューション
  • コネクタとフレックスケーブルの品質
  • 主要コンポーネントのトレーサビリティ

信頼できるサプライヤーは、最低価格だけでコンポーネントを選択するのではなく、グレード付きのセルを使用する必要があります。

2

入荷した材料の検査とセルのグレーディングを確認する

セルは以下に従ってテストし、グループ分けする必要があります。

  • 容量
  • 電圧
  • 内部抵抗
  • 自己放電
  • 厚さと寸法
  • 外観

適切なセルのグレーディングにより、同じ生産バッチからのバッテリー間の一貫性が向上し、異常な実行時間、膨張、初期故障が減少します。

3

完全な電気的および互換性テストが必要

専門のサプライヤーは、開放電圧以上のテストを行う必要があります。品質検証には次のものが含まれます。

  • 充電および放電のパフォーマンス
  • 実際の容量
  • バッテリー電流
  • 保護機能
  • サイクルカウントとバッテリーデータ
  • 残量計パラメータ
  • デバイスの互換性
  • 温度パフォーマンス

専門のバッテリーテスターが充電を実行できます。放電、電流校正、正確なパラメータ比較により、測定データが承認された仕様と一致しないバッテリーを特定するのに役立ちます。

4

自動化と生産の一貫性を評価する

自動化された生産プロセスは通常、手作業による組み立てに比べて一貫性が高く、生産能力が高くなります。

重要なプロセスには以下が含まれます。

  • 自動セル仕分け
  • 自動溶接
  • 自動 PCB テスト
  • 自動接着剤塗布
  • バーコードトレーサビリティ
  • インライン機能検査

自動化は品質管理に代わるものではありませんが、ばらつきを減らすのに役立ちます。手動による位置決め、溶接、組み立てが原因で発生します。

5

アセンブリの詳細を検査する

アセンブリの小さな詳細は、取り付けの効率と製品の信頼性に大きな影響を与えます。

完成度の高いバッテリーには、以下が含まれている必要があります。

  • 事前に塗布されたバッテリー接着剤
  • 防塵保護フィルム
  • フレックス ケーブルの周囲の保護スリーブ
  • フレックス ケーブルの位置が固定されていること
  • コネクタの向きが安定していること
  • バッテリーが緩んだり動いたりしないことケーブル
  • きれいなエッジと正確な寸法

これらの詳細により、フレックス ケーブルの損傷、ほこりの混入、取り付けの動き、コネクタの位置の不正確さが軽減されます。

6

工程内および最終品質検査を確認する

サプライヤーは、完成品のみをチェックするのではなく、生産全体にわたって検査を実施する必要があります。

推奨されるチェックポイントは次のとおりです。

  • 受入材料検査
  • セルのグレーディング
  • PCB および BMS テスト
  • 溶接検査
  • 組立検査
  • 容量テスト
  • 経年劣化テスト
  • 外観検査
  • 包装検査
  • 最終ランダム検査

検査データを製造バッチまで追跡できるかどうかを尋ねます。

7

容量主張、欠陥率、認証を比較する

表示されている最高容量のみに基づいてバッテリーを選択しないでください。

信頼できるサプライヤーは以下を提供する必要があります。

  • テストされた容量データ
  • 明確な定格電圧とエネルギー
  • 顧客から報告された不良率
  • 保証ポリシー
  • 該当する場合、CE、RoHS、FCC、MSDS、およびUN38.3文書
  • モデル固有の認証サポート

セルのスペース、重量、テストデータが一致しない誇張された容量ラベルは、重大な購入リスクとなります。

8

正しいバッテリーの取り付け手順に従ってください

認定済みのバッテリーでも、正しく取り付けられていない場合は故障する可能性があります。

取り付ける前に:

  • 元のバッテリーを 25% 以下に放電してください
  • デバイスの電源を切ります
  • 非金属製の開口ツールを使用してください
  • 他の内部コンポーネントを取り扱う前にバッテリーを取り外してください
  • セルに穴を開けたり、曲げたり、押しつぶしたりしないようにしてください
  • 接着剤から保護フィルムを剥がしてください正しく
  • 所定の位置に押し込む前にバッテリーとコネクタの位置を合わせてください
  • フレックスケーブルが折れたり、伸びたり、挟まれたりしていないことを確認します
  • ネジとブラケットを元の位置に再取り付けします
  • 最終封止する前に充電、バッテリー認識、およびデバイスの機能をテストします

取り付けガイドでは、充電されたリチウムイオンバッテリーに穴が開くと発火または爆発する可能性があることを特に警告し、技術者に電源を切るように指示しています。分解する前の電話機。

9

お問い合わせ

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最小注文数: 10 ユニット
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